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CH244A
(en)
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New tool for the manufacture of hollow bricks
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CH1495A
(en)
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Metal bit plates for easier production of bit
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CH375A
(en)
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Mold system for the production of hollow gypsum bricks
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CH1337A
(en)
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New collar
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CH219A
(en)
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Tools for the production of mosaic tiles
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CH1452A
(en)
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flute
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CH1070A
(en)
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New microphone
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CH324A
(en)
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Brick molding machine for manual and machine operation
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CH1395A
(en)
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New corset
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CH58592A
(en)
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Formwork for the production of concrete ceilings
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CH1466A
(en)
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Tacheometric protractor
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FR338851A
(en)
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Die for the manufacture of tiles
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CH30422A
(en)
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Forming machine for the production of building blocks
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CH985A
(en)
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New carousel
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CH1411A
(en)
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Truss
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CH988A
(en)
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Machine for the production of rail nails
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DK6712C
(en)
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Method of Manufacturing Hydraulic Cements.
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FR340130A
(en)
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Production of new basic coloring materials
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CH20508A
(en)
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Novel brick
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CH1609A
(en)
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New tissue
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CH30164A
(en)
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Paneling for building roofing
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CH1215A
(en)
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Machine for the manufacture of horseshoe nails
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CH644A
(en)
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Machine for the manufacture of horseshoe nails
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CH144A
(en)
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Scaffolding holder
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CH761A
(en)
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Scaffolding holder
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